Instructions

• Preheat the oven to 360°F (180°C).
• Slice the zucchini in half lengthwise, scoop out flesh with a small spoon, and set aside. Place the zucchini halves on a baking sheet skin side down.
• Heat the olive oil in a large skillet over medium-high heat. Add the onion and cook for 5 minutes until softened, then add the ground beef and cook until well browned. Stir in tomato paste, oregano, garlic powder, salt, and pepper.
• Add the tomato sauce and scooped out zucchini flesh (chop up for a more even filling) and simmer gently, covered, on low heat for 10 minutes. Remove the lid, stir well, and simmer for a further 5 minutes.
• Spoon the filling into the prepared zucchini halves and sprinkle the cheese over the top. Place the baking sheet into the hot oven and bake for 20 to 25 minutes. Remove from the oven and serve.